Dinosaurs died out 65 million years ago and we have hardly ever found a complete skeleton. So how do we turn a pile of broken bones into a dinosaur exhibit? Dr Alice Roberts finds out how the experts put skeletons back together, with muscles, accurate postures, and even - in some cases - the correct skin colour. ----------（From BBC Four Programme Official Website） ppypp激情影院-ppypp草民电影网-ppypp伦理天堂-cmvcd-草民爱看的伦理电影网_草民电影网为您提供恐龙是怎样炼成的在线观看，更多影视请访问www.ppyp2.cc